US Bridges

Nfa 970 (sa 6015) over Lytle Creek

Fair

Maury County, Tennessee · 1 M. E. SR7 in Columbia. · Structure no. 60009700003

Built
1940
85 years old
Condition
Fair
inspected July 2024
Type
Tee Beam
Concrete
Length
32 ft
1 main span
Daily traffic
1,289
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Nfa 970 (sa 6015) over Lytle Creek is a concrete tee beam carrying Nfa 970 (sa 6015) over Lytle Creek in Maury County, Tennessee. It was built in 1940, so it is 85 years old, older than the Tennessee average of 47.4 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,289 vehicles a day, roughly 3% of them trucks, projected to reach 2,512 by 2040. The structure is 32 ft (9.8 m) long and 20 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesNfa 970 (sa 6015)
CrossesLytle Creek
Location1 M. E. SR7 in Columbia.
RouteCity Street 970
CountyMaury County
StateTennessee
Coordinates35.61363, -87.01337
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating39.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width20 ft (6 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,289 (2021)
Projected traffic2,512 by 2040
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$215,000 (2020 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Nfa 970 (sa 6015) over Lytle Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is Nfa 970 (sa 6015) over Lytle Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in July 2024.

How much traffic does Nfa 970 (sa 6015) over Lytle Creek carry?

About 1,289 vehicles per day (2021 count), of which roughly 3% are trucks.

How long is Nfa 970 (sa 6015) over Lytle Creek?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 20 ft wide.

Who owns Nfa 970 (sa 6015) over Lytle Creek?

It is owned by the City or Municipal Highway Agency.